Home / 75,730.31-113,615.91-23,138.36

Finding the Fourth Proportional to 75,730.31, 113,615.91 and 23,138.36

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Solution

The fourth proportional to 75,730.31, 113,615.91 and 23,138.36 is: 34,713.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,730.31 : 113,615.91 = 23,138.36 : x
  2. Step 2: Convert to fraction form
    75,730.31/113,615.91 = 23,138.36/x
  3. Step 3: Cross multiply
    75,730.31x = 113,615.91 × 23,138.36
  4. Step 4: Simplify right side
    75,730.31x = 2,628,885,259.23
  5. Step 5: Solve for x
    x = 2,628,885,259.23/75,730.31
  6. Step 6: Final answer
    x = 34,713.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.